ANatomy17

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Author:
matt75
ID:
12461
Filename:
ANatomy17
Updated:
2010-03-30 02:39:20
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17
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17
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  1. Carries blood to the heart
    Veins
  2. Carries blood away from the heart
    Arteries
  3. What does blood carry
    • Respiratory gases
    • Nutrients
    • Messenger molecules-Hormones
  4. Blood is what % of the body's mass
    8%
  5. 2 Main components of blood
    • Plasma
    • Formed Elements
  6. Main component of plasma
    90% water
  7. 3 Formed elements in blood
    • Erythrocytes- RBCs, small, oxygen transporting cells, 7.5 diam, most formed, not true cells
    • Leukocytes- WBCs, less numerous, defend disease, spherical, only in complete cells
    • Thrombocytes- platelets, clotting cells, disc shaped
  8. 3 main plasma proteins
    • Albumin- contributes to oncotic pressure, keeps water from diffusing out of bloodstream into extracellular matrix of tissues
    • Globulins- antibodies and blood proteins that that transport lipids, iron, and copper
    • Fibroginen- one of several protein and non-protein molecules in chem. reactions achieving blood clotting
  9. Viscosity of blood
    • Thicker than water due too proteins
    • WBC viscosity ratio 3-4
    • Dehydration causes decrease in plasma
  10. Serum
    Plasma with clotting factors removed
  11. Coagulaton
    Casues fibroginen to become a clot leaving serum
  12. Hematocrit
    • Percentage of blood volume that consists of erythrocytes
    • 45% average
    • Male- 47% +/-5
    • Female- 42% +/-5

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